/*
 * Copyright 2021-present StarRocks, Inc. All rights reserved.
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.starrocks.data.load.stream;

import java.util.UUID;

/** Generate labels. */
public interface LabelGenerator {

    String next();

    class DefaultLabelGenerator implements LabelGenerator {

        private final String labelPrefix;

        public DefaultLabelGenerator(String labelPrefix) {
            this.labelPrefix = labelPrefix;
        }

        @Override
        public String next() {
            return labelPrefix + "-" + UUID.randomUUID();
        }
    }
}
